Seven years ago, to find out the truth about her aunt's murder, Lin Yushu deliberately approached Yuan Siye, and after getting the evidence to send his stepfather to prison, she decisively broke up. Seven years later, Lin Yushu returned to China, and Yuan Siye, who was already a group president, secretly signed her with a hidden identity, using her best friend's daughter's medical expenses as a bargaining chip to force her to sign a one-year couple agreement. During their time together, past misunderstandings gradually unraveled, and the two joined hands to fight against Li Jiayi and others who held a grudge for revenge. After the storm subsided, Lin Yushu learned that Yuan Siye had secretly helped her back then, and the two untied the knot of many years, tore up the short-term agreement, and made a promise to stay together for a lifetime.